/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package si.ibloc.cms.logic.impl;

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.persistence.EntityManager;

import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.faces.FacesMessages;
import org.jboss.seam.log.Log;
import org.jboss.seam.security.Identity;
import si.ibloc.cms.model.Role;
import si.ibloc.cms.model.User;

/**
 * @author <a href="mailto:ales.justin@jboss.com">Ales Justin</a>
 */
@Name("register")
public class Register {
   @Logger private Log log;
   @In private EntityManager entityManager;
   @In(create = true) private User user;

   public void next() {
      List existing = entityManager.createQuery(
            "select username from User where username=#{user.username}")
            .getResultList();

      if (existing.size() == 0) {
         entityManager.persist(user);
         Identity identity = Identity.instance();
         identity.setUsername(user.getUsername());
         identity.setPassword(user.getPassword());
         // roles
         Role guest = (Role)entityManager
               .createQuery("from Role r where r.name = ?")
               .setParameter(1, "guest")
               .getSingleResult();
         guest.getUsers().add(user);
         Set<Role> roles = user.getRoles();
         if (roles == null) {
            roles = new HashSet<Role>();
            user.setRoles(roles);
         }
         roles.add(guest);
         identity.addRole(guest.getName());
         log.info("Registered new user #{user.username}");
      } else {
         FacesMessages.instance().add("User #{user.username} already exists");
      }
   }

   public User getUser() {
      return user;
   }

   public void setUser(User user) {
      this.user = user;
   }
}
